Vulnerability Description
An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.2.12 |
Related Weaknesses (CWE)
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12Mailing ListRelease Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffMailing ListPatch
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12Mailing ListRelease Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffMailing ListPatch
FAQ
What is CVE-2023-38409?
CVE-2023-38409 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_d...
How severe is CVE-2023-38409?
CVE-2023-38409 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-38409?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.